FerroSilicon is a kind of ferroalloy which is composed of iron and silicon.FerroSilicon is made by electric furnace with the raw materials coke, quartz (or silica) and iron scrap.
Due to the silicon and oxygen are easily compound into SiO2, so ferro silicon is often used as deoxidizer in steelmaking.
Ferro silicon is produced by reduction of silica or sand with coke in the presence of iron. Typical sources of iron are scrap iron, millscale. Ferro silicons with silicon content up to about 15% are made in blast furnaces lined with acid fire bricks. Ferro silicons with higher silicon content are made in electric arc furnaces. The usual formulations on the market are ferro silicons with 15%, 45%, 75%, and 90% silicon. The remainder is iron, with about 2% consisting of other elements like aluminium and calcium. An overabundance of silica is used to prevent formation of silicon carbide.
Normally 20%-50%deposit as order be cfmed, balance based on B/L copy.